"Jack the Giant Slayer" debuted at No. 1 during a slow weekend at the box office with an estimated $28 million, falling far short of its nearly $200 million budget.

Last week's No, 1, "Identity Thief", came in second with $9.7 million, and "21 and Over" debuted in third place with $9 million.

The top ten:

"Jack the Giant Slayer," $28 million
"Identity Thief," $9.7 million
"21 & Over," $9 million
"Last Exorcism: Part 2," $8 million
"Snitch," $7.7 million
"Escape From Planet Earth," $6.7 million
"Safe Haven," $6.3 million
"Silver Linings Playbook," $5.9 million
"Good Day to Die Hard," $4.5 million
"Dark Skies," $3.5 million